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Superior placement of the glenoid component
75%
936/1242
Retroverted placement of the glenoid component
5%
65/1242
Inferior placement of the glenoid component
12%
146/1242
Overtensioning of the soft tissue envelope
2%
20/1242
Inferior tilt of the glenoid component
60/1242
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Superior placement of the glenoid component during reverse shoulder arthroplasty can lead to scapular notching. This is the most common radiographic complication following the procedure. Illustration A shows this radiographic finding. Simovitch et al demonstrated that superior positioning of the glenoid component as well as superior tilt of the component with respect to the scapula were factors that led to scapular notching. Patients with this radiographic finding also had poorer clinical outcomes. Gutierrrez et al performed a biomechanical study which assessed the limits to range of motion with reverse shoulder implants. They found that inferiorly, adduction was limited by impingement on either the inferior scapular border or the glenoid. Superiorly, abduction was limited by impingement on the acromion.
3.9
(23)
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